Button



May y17, 15532- G. E. sHARPLEs Y 1,858,686

.1 BUTTON Filed Dec. 30, 1951 Patented May 17, 1932 UNITED STATESCOMPANY, A CORPORATION 0F RHODE ISLAND 1 BUTTON y Application medDecember 30,71931.7 seriai'rNq. 583,841.-

My invention relates to separable buttons or emblems of the lapelengaging type.

The essential objects of my invention are the prevention of tearing orbraiding the' Y shown 1n F igurc 4, has an annular groove or lapel orother engaged fabric by the teeth in their rotary movement of engagementto simplify the structure and the method of construction of the button,as well as to effect a saving in cost of construction; and to insure anunobstructed swiveling action of the toothed disk.

My invention consists in such parts and combinations of parts, and insuch steps and in such successions of steps as fall within the scope ofthe appended claims.

In the accompanying drawings which form a part of this specification,

Figure 1 is a side elevation of my button,

Figure 2, a similar elevation partially in central vertical section,

Figure 3, a section on line 3-3 of Figure 2, and

Figure 4, a section of the lower portion of the back member of my buttonbefore assembling, and an elevational section of a portion of thecrimping tool or die.

Similar reference numerals indicate simil ar parts throughout the views.

A front-.or entrant member 7 includes an ornamental head of anypreferred outline fixed to or integral with a shank 8 provided with athread 9.

The back member or base consists of a circular plate 11 and a centralcylindrical elevation 12 provided with an inward bevel in its top as at13, and with an annular indent 15 at its base; and the plate 11 and theelevation are initially provided with a central bore 16, all as shown inFigure 4.

In this figure is also shown a circular disk 18 provided with a centralopening 20 having a beveled face 21 tapering inwardly in a downwarddirection. Upon the peripheral edge of the upper or front face of thedisk 18 is an annular series of relatively broad int-egral teeth 23. Theminimum diameter of the opening 20 is slightly lgreater than the maximumdiameter of the elevation 15.

In assembling the disk 18 and back member or plate 11, the former isplaced upon the latter',l the elevation 12 sliding through the opening20and projecting above the plane ofthe upper face of the disk18. n

Az'swaging or crimping tool orfdie 25, as

recess 2T in the margin of its operating face Vmerging ina 'centrallylocated Ydepending conical projection 29,. ATheztool is forced upon andintothe elevation 12,:r'adially expanding and depressing the latter toform an externally conical bearing 31 loosely engaging the beveled diskopening 2O and terminating in an annular rolled over lip or Harige 32slidably overlapping the disk 13, as shown in Figure 2. member 18 isrotatably engaged with the front or top face of the member 11 and withthe bearing 31 and lip portion 32. Subse- Ciucntly the bore 16 oftheplate is tapped to form an internal thread 33.

The application of this button to a coat lapel is effected bypushingwith one hand the shank 8 of the head 7 through the lapel hole.The back plate 11 is then turnedby the operators other hand whichadvances 'A the pla-te upon the threaded shank until the teeth 23contact with the lapel, and sink rectilinearly therein uneffected by thecontinued .rotary movement of the member 11. Hence the teeth cannotabraid the lapel. Y

I claim f 1. In a. button, ahead, ashank thereon provided with a screwthread, a back plate provided with a threaded hole adapted to receivethe thread of the shank, a stationary bearing upon the front of theplate concentric with the h ole, a Adisk rotatably engaging the bearingand the front of the plate, a terminal annular iange upon the bearingoverlapping the disk and in slidable contact therewith, and an annularseries of forwardly directed teeth upon the margin of the disk. v

2. In a button, a head, a shank upon the head provided with athread, aback plate, a forwardly directed flaring bearing integral with thecenter ot the plate, said plate and bearing being provided with acentral hole,

By the described operation the and said `hole being provided with athread engageable with the first thread, a rotatable provided with acentral opening for the reception oft-lie bearing, said opening beingprovided with a taper'conforming with the flaring of the bearing, alateral flange upon the end of the bearing in sliding engagement withtheyplate, and forwardly directed teeth upon the margin/of the disk.V

3. The method of constructing the back y members of a separable buttonconsstlngin Vormingf'ap'late andamentwlfcylindriel 'elle' vation with acentralbore mid'lwithnannward bevel upon the free end of the elevation,placing loosely upon the pla-te a dis'kfv with a central openingtapering inwardly in,k

a downward direction, said diskbeing dfless` thickness than the heightof the elevation,

thereafter `radially expanding and 'depress- 'ing 'the elevation toexternally conform to the 4bevel of the l'isk,a11'd.tooverlapfthe.lat fter,v and tapping 'the Abore to form lafthread l therein. i

K In ytestimony whereof I have aliixed my signature. A- i y Y GEORGE E.

